Class identification (ParkingLot, Floor, Spot, Vehicle) in LLD - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the role of the ParkingLot class in a parking system?

The ParkingLot class manages the entire parking area. It keeps track of floors, available spots, and overall capacity.

beginner

What does the Floor class represent in a parking system?

The Floor class represents a single level within the ParkingLot. It contains multiple parking spots and manages their availability.

beginner

What is the purpose of the Spot class in the parking system?

The Spot class represents an individual parking space. It can be assigned to a Vehicle and tracks if it is occupied or free.

beginner

How does the Vehicle class fit into the parking system design?

The Vehicle class represents a car or other vehicle that needs parking. It holds details like vehicle type and license number.

intermediate

Why is it important to identify classes like ParkingLot, Floor, Spot, and Vehicle separately?

Separating these classes helps organize the system clearly. Each class has a focused responsibility, making the design easier to manage and scale.

Which class is responsible for managing multiple floors in a parking system?

A ParkingLot

B Floor

C Spot

D Vehicle

The ParkingLot class manages multiple floors, overseeing the entire parking structure.

What does a Spot class instance represent?

A A parking space

B The entire parking lot

C A floor in the parking lot

D A vehicle parked

Spot represents an individual parking space where vehicles can park.

Which class would store a vehicle's license number?

A ParkingLot

B Floor

C Spot

D Vehicle

Vehicle class holds details about the vehicle, including license number.

If you want to check if a parking spot is free, which class should you query?

A ParkingLot

B Floor

C Spot

D Vehicle

Spot class tracks whether it is occupied or free.

Which class acts as a container for multiple Spot objects?

A Vehicle

B Floor

C ParkingLot

D Spot

Floor contains multiple Spot instances representing parking spaces on that level.

Describe the responsibilities of the ParkingLot, Floor, Spot, and Vehicle classes in a parking system.

Think about how a real parking garage is organized from big to small parts.

Explain why separating the parking system into these classes helps in system design.

Consider how dividing tasks among team members makes work easier.